JPS586669B2 - Elevator access - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator position detection device.

First, a conventional position detection device will be explained using an end stop device shown in FIGS. 1 and 2.

In the figure, 1 is a hoistway, 2 is a guide rail erected here, 3 is an elevating body consisting of the corner of the elevator, and 4 is an elevating body 3
This guide device consists of a well-known roller guide shoe mounted on a roller guide shoe, and has three rollers that are supported in a vibration-proof manner by a vibration isolator, and are engaged with the guide rail 2 by these rollers.

Reference numeral 5 denotes an actuating body consisting of a cam disposed at each end of the hoistway 1, and is attached to a plurality of support arms protruding from the guide rail 2, so that one end is closer to the guide rail 2 than the other end. Reference numeral 06 disposed on the elevator body 3 is an actuating device consisting of a switch fixed to the elevating body 3, and is equipped with a plurality of contacts (not shown), which are sequentially closed by rotating the shaft 6a. It looks like this.

Reference numeral 6b is an arm having one end fixed to the shaft 6a and the other end pivotally supporting a wheel 6c, so that only the wheel 6c comes into contact with the operating body 5.

That is, the elevating body 3 is guided by the guide rail 2 and moves up and down.

When the elevating body 3 is moving up and down the intermediate portion of the hoistway 1, the arm 6b of the actuating device 6 is in a downward position as shown in FIG.

Now, if the elevating body 3 rises from the state shown in FIG.
, the shaft 6a is rotated clockwise via the arm 6b.

As a result, the contacts of the actuating device 6 corresponding to the ascent of the elevating body 3 are activated, the position of the elevating body 3 is detected, and an appropriate deceleration command is issued to control the elevating body 3.

However, since the guide device 4 is provided with a vibration isolator, when this is bent, the elevating body 3 is displaced in the left-right direction in FIG. 2 with respect to the guide rail 2.

This displacement causes an error in the rotation angle of the shaft 6a of the actuating device 6, so this error has been reduced by lengthening the arm 6b.

For this reason, there is a disadvantage that the actuating device 6 becomes large and the manufacturing cost increases, and the mass of the arm 6b becomes large, so that especially in high-speed elevators, the actuating body 5 is attached to the rolling wheels 6c.
There was a drawback that the collision sound when the two came into contact was louder.

Further, in order to rotate the arm 6b, which has a large mass, it is necessary to strengthen the actuating body 5, and there is a drawback that manufacturing and installing the actuating body 5 requires a large amount of materials and labor.

The present invention aims to eliminate the above-mentioned drawbacks and to provide an elevator position detection device that is not affected by lateral displacement of an elevating body with respect to a guide rail.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

The parts other than those shown in the drawings constitute the elevator in the same way as in Figs. 1 and 2. In the figures, the same reference numerals as in Figs. It is mounted on the upper surface near the guide rail 2, and a protrusion 1a is provided at a position offset to one side facing the guide rail 2.

8 is a first member whose lower end is pivoted near the protrusion Ia of the substrate 1;
Two rods with links and a crosspiece 8 that connects them to each other
A, one of the rods protrudes upward, and a wheel 9 is pivotally attached to the protruding end.

10 is a second link whose one end is apart from the first link 1 and pivotally connected to the board I; 11 is a support base; the first and second links s,
io and constitutes a parallel movement mechanism that revolves around these as opposite corners.

Reference numeral 12 indicates a support rod having one end fixed to the protrusion 13 of the board I and having a screw at the other end, which protrudes toward the first link 8 and is loosely pushed through the cross member Ba; 14 is a nut screwed into the protruding end of the support rod 12, and 15 is an attachment consisting of a compression coil spring that is inserted through the support rod 12 and has both ends abutted against the cross member 8a and the spring receiver 13, respectively. It is a situation.

6 is an actuating device mounted on the support stand I1.

That is, the support stand 11 moves together with the elevating body 3, and the rollers 9 are pressed against the side surface of the guide rail 2 by the biasing body 15 and roll on this surface.

Therefore, even if the vibration isolator of the guide device 4 is bent and the elevating body 3 is laterally displaced with respect to the guide rail 2, the positions of the guide rail 2 and the support base 11 are kept constant.

Therefore, when the wheel 6c at the operating position 6 comes into contact with the operating body 5, the influence of the lateral displacement of the elevating body 3 is eliminated.

Since the detection accuracy of the position of the elevating body 3 can be improved, the actuating device 6 and the actuating body 5 can be configured simply, such as by shortening the arm 6b of the actuating device 6.

In addition, manufacturing costs and installation costs can be reduced, and
Measures to prevent collision noise generated in high-speed elevators should be made easier.

Therefore, it is possible to obtain an elevator position detection device with good ride comfort and high reliability using an inexpensive device. It is clear that the same effect as in this embodiment can be obtained even if an operating body is attached to the elevating body 3, which is attached to one fixed body and which operates the proximity switch when it approaches.

5 to 1 show other embodiments of the present invention. In the figures, the same reference numerals as in FIGS. These are links that are pivotally connected via joints, and are spaced apart from each other at positions corresponding to the respective vertices of an isosceles triangle in a plane, as shown in FIG.

9 is pivotally connected to the support base 11 and is attached to the guide surface 3 of the guide rail 2.
The wheels are placed opposite the surface and roll in contact with the guide surface.

Reference numeral 5 denotes a tape-shaped actuating body disposed on the side of the guide rail 2 along its length, and is provided with actuating parts 5a consisting of a large number of protrusions provided at equal intervals along the length.

Reference numeral 6 denotes an actuating device consisting of a capacitance meter attached to the support base 11, an overcurrent displacement meter, or a device for detecting the displacement and speed of an opposing object using light, electromagnetic waves, etc.; It operates when it is arranged so as to face and corresponds to the actuating part 5a.

That is, the actuating device 6 moves up and down together with the elevating body 3, and the position of the elevating body 3 is detected by another device (not shown) based on the number of operations.

The support base 11 on which the actuating device 6 is supported is urged toward the guide rail 2 by the urging member 15 via the link 8 and is held at a predetermined position with respect to the guide rail 2 surface by the rollers 9.

Therefore, even if the elevating body 3 is displaced in the horizontal direction, the guide rail 2
The position of the actuating device 6 relative to the device remains unchanged.

Therefore, although a detailed explanation will be omitted, it is clear that the same effect as the embodiments shown in FIGS. 3 and 4 can be obtained in this embodiment as well.

As explained above, the present invention is supported by a link device fixed on one side to an elevating body that is secured to the guide rail via a vibration isolator, is pressed against the guide rail, and is attached to the guide rail so as to be able to rise and fall. A combined support body is provided, an actuating device is fixed to this support body, and the position of the elevating body is detected by the actuating body fixed to the hoistway.

As a result, errors in position detection due to lateral displacement of the elevating body can be reduced, and a highly reliable elevator position detecting device can be realized using a simple and inexpensive device.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a main part of an elevator system showing a conventional elevator position detection device, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a cross-sectional view of an elevator position detection device according to the present invention. An enlarged view of part m in Fig. 2 showing one embodiment, and Fig. 4 shows the third part.
5 is a view corresponding to FIG. 4 showing another embodiment of the elevator position detection device according to the present invention, FIG. 6 is a plan view of FIG. 5, and FIG. 1 is a view of FIG. 5. It is a right side view. 1... Hoistway, 2... Guide rail, 3
... Elevating body, 4 ... Guide device, 5 ...
... Actuating body, 6... Actuating device, 1...
... Board, 7a ... Protrusion, 8 ... First link, 9 ... Rolling wheel, 10 - ... Second
Link, 11...Support stand, 12...Support rod, 13...Splash catch, 14...Nut, 15...With Status. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. A lifting body that is engaged with a guide rail provided in a hoistway via a vibration isolator and moves up and down, an actuating body provided on a fixed body of the hoistway, and an actuating body disposed on the hoistway. an actuating device that operates in correspondence with the above-mentioned elevating body to detect the position of the elevating body; and a link device having one side fixed to the elevating body and supported by the other side and engaged with the guide rail so as to be movable up and down, and the guide A position detecting device for an elevator, comprising a support body which is suppressed by a rail and to which the actuating device is fixed.